Top Definition
The effect of getting more frequent erections during springtime, a phenomenon which is believed to have a direct connection to animal mating habits which tend to peak during the aforementioned season. Can be particularly discomforting when wearing sweatpants and being in the vicinity of other people.
- Hey man, isn't springtime great?

- Dude, are you kidding me? I'm having the worst case of spring wood ever and I have a presentation in front of the whole class today...
by M.C.T. April 09, 2011
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